Limestone
Calcium Carbonate (CaCO3)
Category
Browse sedimentary (man made conglomerate) specimens identified by the Rock Identifier community.
Limestone
Calcium Carbonate (CaCO3)
Sandstone
Arenite (primarily composed of SiO2)
Limestone (Flagstone)
Fossiliferous Limestone (CaCO3)
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 inclusions)
Sandstone (Quartz-rich)
Arenite (SiO2 based clastic rock)
Chert (Septarian Nodules-like)
Silicon dioxide (SiO2)
Seashell (Cockle Shell)
Cardiidae (Bivalvia), primary composition: Calcium Carbonate (CaCO3) in the form of aragonite or calcite
Rhodochrosite
Manganese Carbonate (MnCO3)
Sandstone
Arenite (primarily SiO2)
Agate Nodule
Silicon Dioxide (Chalcedony), SiO2
Agate
Silicon Dioxide (Chalcedony), SiO2
Quartz Pebble
Silicon Dioxide (SiO2)
Jasper
Microcrystalline Quartz (SiO2)
Sandstone
Sedimentary Rock (Quartz/Feldspar grains cemented together)
Quartz Sandstone
Quartz Arenite
Sandstone Concretion
Sedimentary Concretion (Quartz sand bound by mineral cement)
Jasper
Microcrystalline Quartz (SiO2)
Fossil Shark Tooth
Selachii fossil
Banded Sandstone
Quartz-rich Arenite Sandstone
Quartz pebble
Silicon dioxide (SiO2)
Limestone
Calcium Carbonate (CaCO3)
Chert (Flint Nodule)
Silicon Dioxide (SiO2)
Fossilized Bivalve in Limestone
Class Bivalvia within Sedimentary Matrix (likely CaCO3)
Chert / Flint
SiO2 (Silicon Dioxide)
Chert (Common Opal/Agate variety)
Microcrystalline Quartz (SiO2)
Chert (Jasper/Flint variant)
Microcrystalline Quartz (SiO2)
Sandstone (Red/Brown)
Arenite (composed primarily of SiO2)
Sandstone (Quartzose)
Arenite (primarily SiO2)
Limonite stained Sandstone
Sedimentary rock with Goethite/Limonite (FeO(OH)·nH2O)
Chert (Flint/Jasper)
Silicon Dioxide (SiO2)
Chert (Jasper-like Silicate)
Microcrystalline Quartz (SiO2)
Chert
Microcrystalline Quartz (SiO2)
Sandstone (likely Graywacke or Arkose variant)
Clastic Sedimentary Rock (SiO2 with assorted lithic fragments)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Limestone (specifically Grainstone or Micrite)
Calcium Carbonate (CaCO3)
Sandstone
Sedimentary Rock (Quartz Sandstone)
Limestone with Stylolites
Calcareous sedimentary rock (CaCO3)
Sandstone
Sedimentary Rock (Quartz arenite)
Sandstone
Sedimentary Rock (Quartz Sandstone)
Sandstone Pebble
Sedimentary Rock (Quartzose Sandstone)
Sandstone
Sedimentary Rock (Quartz arenite)